Dust-guard for car-axle boxes



- A. CURRIE.

DUST GUARD FOR CAR AXLE BOXES. APPLICATION FILED Nov. I8, 1918.

1,391,998." Pa nted'sepu 27,1921

. amwwtoz PATENT ornce."

ALEXANDER CURRIEpOFyYoNKERs, NEW YORK.

DUST-GUARD FOR CAR-AXLE BOXES;

Specificationof Letters Patent. 7 Patented Sept. 27, 1921.

Original application filed November 24-, 1917, Serial No. 203,805.'Divided'and this application filed November is, 191 8.

T0 all'whomz't may concern." l

Be it knownthat I, ALEXANDER CURRIE, a citizen of Canada, and residentof Yonkers, in the county of WVestchester and State of New York, haveinvented certain new and useful Improvements'in Dust-Guards for Car-AxleBoxes, of which the following is a specification.

This application "is a divisional of one filed by me on Nov. 241, 1917under Serial Number 203805. I

The invention has for an object to provide'a self-supporting metallicdust guard of simple construction adapted to facilitate installation ofthe guard in a dust guard slot and to minimize danger of its beingrendered non-self-supporting from defectiveapplication to an axle box orapplication to a defective or unsuitable box, or otherwise.

Figure 1 of the drawings is a face view of a dust guard embodying theinvention.

Fig. 2 is a transverse section on the line 22 of Fig. 1.

Fig. 3 is a side elevation. Fig. 4 is a horizontal section on the line4-4 of Fig. 1.

As here shown my improved dust guard comprises a single plate 2 ofresilient metal, preferably soft steel, and having formed therein anaxle opening 4 surrounded by a collar 5, this opening being disposedapproximately centrally of the plate.

The upper end of the plate is in the form of a pair of spaced flanges 6and 7 bent over on the same side of the plate as the collar 5, theseflanges in vertical section being in the form of a double curve whoseextreme edge is bent backwardly toward the body of the plate as at 8.The lower flange is also formed as at 10 on the same side as the flanges6 and 7 and of the same double curve as the latter and bending backtoward the body of the plate at its edge as at 11.

The sides of the guard are shown as tapering toward oneanother in thelower portion thereof, this taper commencing a short distance above thejunction of the flange with the body of the plate and continuing downthrough the flange.

The space between the top flanges corresponds in size and shape to theoutline of l the bottom flange, the top flanges thus tapering in widthtoward the top edge of the plate. The lower flange preferablyprojectsSerial No. 263,030.

a-lesser lateral distance from the body of the plate than the upperflanges.

The body of the plate is preferably stiffened on each side of the axleopening by a series of vertical corrugations 15 which increase insize,as shown inthe drawings, toward the side edges of the plate. The lowerflange may be stiffened by the corrugations 17 disposed inwardly of thecorrugations 15 and overlapping the ends of the latter, thesecorrugations 17 preferably decreasing in size toward the lower portionof the flange 10. and dying out a distance above the bottom of thisflange, while 'the upper flanges may be stiffened by carrying thecorrugations 15 upward thereinto, the corrugations closer'to the axleopening being carried up farther than those toward the edge of theplate.

This construction has the advantage of lightness and also of saving ofsteel since it will be apparent that in stamping the blanks the portioncut out between the top flanges G and 7 will constitute the lower flangeof another guard.

Also the stiffening of the various parts of the guard insures suflicientholding power in the dust guard slot while with the lower flange havinga smaller lateral offset than the upper flanges installation in the dustguard slot is facilitated, the lower flange projecting just a sufiicientdistance to per mit of installation in the narrowest dust guard slotswithout undue friction, the desired frictional hold against the Wallsbeing obtained when. the upper flange is compressed in the slot.

I have indicated the cross sectional outline of the dust guard slot at20 to show the position of the guard therein, but it is not thoughtnecessary to further illustrate or describe the application of a guardto anaxle box, this being similar to the Gamage guard, Pat. No.1,015,551, which is well known to the art. The flanges of the guard aresufficiently offset to support the guard in the slot by their resilientpressure while a structure is provided which eliminates the tendency topermanent distortion found in the Gamage guard.

What I claim is: V

1. A dust guard for car axle boxes comprising a single plate having atits upper end a pair of spaced flanges located toward opposite sides ofthe plate, and at itslower end a single flange located centrally betweenopposite sides of the plate, said upper and lower flanges being adaptedto bear on one wall of the dust guard slot, and the body of the platebeing adapted to bear on the opposite wall of the dust guard slot. 2. Adust guard for car axle boxes comprising a single plate having a pair aof laterally projecting spaced flanges at its upper end, and at itslower end a laterally projecting flange whose bottom portioncorrespondsin size and shape to the lower portion of the space between the upperflanges. 3. A dust guard for car axle boxes having supporting flanges atits upper and lower ends and a central opening to receive the caraxle,-the body of the plate being stiffened by a plurality of verticalcorrugations increasing in size toward the side edges of the plate.

4. A dust guard for car axle boxes comprising a single platehaving atits upper end a pair of spaced supporting flanges and at its lower end asingle supporting flange, and means stiffening the body of the plate andthe upper flanges.

5. A dust guard for car axle boxes comprising a single plate having atits upper end a pair of spaced supporting flanges and at its lower end asingle supporting flange, means stifl'ening the body of the plate andthe upper flanges and independent means stiffening the lower flange.

Signed at Yonkers in the county of 'Westchester and State of New Yorkthis 15th day of November A. D. 1918. i

. ALEXANDER CURRIE.

lVitnesses: a

GEO. C. GARRETT,

HENRY M. ANDERSON.

